What's a JIC fitting??
 

Anyone ever heard of a JIC fitting?? It looks just like an AN fitting....are they the same??

JIC fittings, or SAE J514, or MIL-F-18866, are a type of flare fitting having 37-degree flare seating surfaces and are widely used in hydraulic applications. JIC fittings are similar in size and threading to AN fittings. 45-degree flare SAE fittings are similar in thread, but not angle and are not interchangeable.

JIC fitting systems have three components that make a tubing assembly: body, nut, and sleeve, and depend upon metal-to-metal contact between the finished surface of the fitting nose and the inside diameter of the flared tubing to make a seal. Common meterials of construction include stainless steel, forging brass, machining brass, Monel, and nickel-copper alloys.

As the fitting nose is installed on the flared tubing, they are held together by the fitting sleeve, which distributes the compressing load from the nut as it is threaded onto the fitting body. The sleeve extends to the back of the nut, which provides additional support for the tubing, and reduces longitudinal load on the fitting nose.

WOW!! Thanks for the load of info. I just wanted to see if a 1/2 JIC and -8 AN were the same or interchangeable. So I guess if I have a male 1/2" JIC, I can't connect it to a -8 female hu??

The 37° JIC fitting is dimensionally the same as an AN but it is not approved as flight hardware. Unless your truck is a whole lot faster than you think, there should be no problem. FWIW Parker, Aeroquip, Adaptall, etc use the "-8" terminology rather than "1/2"" on JIC fittings. I've never seen a catalogue listing with the 1/2" in the part number

So you're saying they will physically mate up and not leak then??

Yes

great post i could not have said it better myself:beers: